R&D Report 1989-17 : A waveform capture and storage unit and its use for investigating disturbances on digital transmission links.
A. Oliphant, R.E. Vialls, R.M. Inman
This report describes a unit to capture analogue waveforms and store them digitally. It was designed for investigation of bitstream disturbances in the BBC's PCM audio distribution network which uses an 8448 kbit/s multiplex of digital audio signals carried on analogue video circuits. The unit has been successfully used in the diagnosis and subsequent elimination of bitstream disturbances that had given rise to complaints from listeners; several examples of its use so far are given and other applications are suggested.